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磁储存

磁储存(英语:Magnetic storage),一种利用材料的磁性特质,将资料储存在磁性媒介上的工程技术,可以用来制作出非挥发性内存。储存在这类媒体上的资料,称为磁记录(英语:magnetic recording),可以透过一个或多个读写头(read/write heads)来读取或写入。目前在个人电脑上广泛应用的硬盘,就是一种磁储存装置。其他的磁储存装置,还有软碟磁带、以及信用卡上的磁条等。

发展历史

美国机械工程师奥柏林·史密斯(Oberlin Smith)在1878年,取得磁性记录仪器的专利。1888年,于杂志《电世界》(Electric World)发表文章,首次阐述了磁性记录仪器,但他并没有真的将这个仪器实做出来。1889年,丹麦科学家伏德马·波尔森(Valdemar Poulsen),对铁丝施加磁性处理,实做出第一个磁性记录仪器。

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磁储存
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